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Refurbished Galaxy S21 Ultra 5G

20 products
Bestseller
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedBlack - 128 GB - Physical SIM + eSIM

4.2/5
(345)
Starting at
$239.00
$1,299.99 new
Bestseller
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedSilver - 128 GB - Physical SIM + eSIM

4.2/5
(345)
Starting at
$289.13
$1,199.99 new
Bestseller
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedBlack - 256 GB - Physical SIM + eSIM

4.2/5
(366)
Starting at
$366.00
$1,026.20 new
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedBlack - 512 GB - Physical SIM + eSIM

4.2/5
(343)
Starting at
$374.49
$1,199.00 new
Galaxy S21 Ultra 5G · Locked AT&T

Galaxy S21 Ultra 5G · Locked AT&TBlack - 128 GB - Physical SIM + eSIM

3.9/5
(6)
Starting at
$212.00
$1,500.00 new
Galaxy S21 Ultra 5G · Locked Verizon

Galaxy S21 Ultra 5G · Locked VerizonSilver - 128 GB - Physical SIM + eSIM

4.2/5
(5)
Starting at
$246.99
$1,500.00 new
Galaxy S21 Ultra 5G · Locked T-Mobile

Galaxy S21 Ultra 5G · Locked T-MobileBlack - 128 GB - Physical SIM + eSIM

3/5
(2)
Starting at
$239.00
$1,500.00 new
Galaxy S21 Ultra 5G · Locked AT&T

Galaxy S21 Ultra 5G · Locked AT&TDark Gray - 128 GB - Physical SIM + eSIM

Starting at
$259.99
$1,200.00 new
Galaxy S21 Ultra 5G · Locked Verizon

Galaxy S21 Ultra 5G · Locked VerizonBlack - 128 GB - Physical SIM + eSIM

4/5
(4)
Starting at
$272.72
$1,500.00 new
Galaxy S21 Ultra 5G · Locked AT&T

Galaxy S21 Ultra 5G · Locked AT&TSilver - 128 GB - Physical SIM + eSIM

3.9/5
(6)
Starting at
$286.00
$1,500.00 new
Galaxy S21 Ultra 5G · Locked T-Mobile

Galaxy S21 Ultra 5G · Locked T-MobileSilver - 128 GB - Physical SIM + eSIM

3/5
(2)
Starting at
$289.13
$1,500.00 new
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedDark Gray - 128 GB - Physical SIM + eSIM

Starting at
$339.00
$1,299.99 new
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedDark Gray - 512 GB - Physical SIM + eSIM

4.2/5
(336)
Starting at
$363.79
$1,299.00 new
Galaxy S21 Ultra 5G · Locked AT&T

Galaxy S21 Ultra 5G · Locked AT&TBlack - 128 GB - Physical SIM + eSIM

3.9/5
(6)
Starting at
$367.00
$1,206.81 new
Galaxy S21 Ultra 5G · Locked AT&T

Galaxy S21 Ultra 5G · Locked AT&TBlack - 128 GB - Dual Physical SIM + eSIM

3.9/5
(6)
Starting at
$399.98
$618.29 new
Galaxy S21 Ultra 5G · Locked T-Mobile

Galaxy S21 Ultra 5G · Locked T-MobileBlack - 128 GB - Dual Physical SIM + eSIM

3/5
(2)
Starting at
$399.98
$1,500.00 new
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedBrown - 256 GB - Physical SIM + eSIM

4.2/5
(341)
Starting at
$409.00
$1,299.99 new
Galaxy S21 Ultra 5G · Unlocked

Galaxy S21 Ultra 5G · UnlockedBlack - 512 GB - Physical SIM + eSIM

4.2/5
(338)
Starting at
$449.99
$1,499.99 new
Galaxy S21 Ultra 5G · Locked T-Mobile

Galaxy S21 Ultra 5G · Locked T-MobileBlack - 256 GB - Physical SIM + eSIM

3/5
(2)
Starting at
$499.00
$1,500.00 new
Galaxy S21 Ultra 5G · Locked AT&T

Galaxy S21 Ultra 5G · Locked AT&TBlack - 256 GB - Physical SIM + eSIM

Starting at
$514.00
$1,500.00 new
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Refurbished Galaxy S21 Ultra 5G's customer reviews

4.2/5

365 verified reviews in the last 12 months.

  • M

    Michael t W.

    Purchased on September 11, 2024

    Verified purchase
    5/5

    This is my fourth phone Ive gotten from backmarket!! WHY? Because searching the net up and down ..Backmarket alwasy seemed tpo have the best deal.One big reason is the first two had clear new screens and the phone was refurbished.This time i got a galaxy s21..It is brand new looking..Super good phone.Super happy-PEACE

    Reviewed in the United States on December 9, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • G

    Geraldine M.

    Purchased on January 23, 2025

    Verified purchase
    4.1/5

    The Galaxy S21 Ultra 5G 128G Black is a nice phone. It had one slight scratch although the description said Excellent Condition with no visible marks. Both phones had visible marks. We liked the phone in spite of this.

    Reviewed in the United States on February 10, 2025

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • S

    Shawn N.

    Purchased on May 20, 2024

    Verified purchase
    4.6/5

    The phone is amazing and just as I expected. It did have a small scratch on the front that is deep enough to see when the phone isn't on when I ordered the excellent version, but other than that it's great!! I would definitely recommend it to anyone looking to buy refurbished!

    Reviewed in the United States on December 9, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • K

    Kyle M.

    Purchased on May 27, 2024

    Verified purchase
    4.6/5

    There was a scratch on the back by the camera, I give the quality of this refurbished device 4.5/5 stars. Everything else 💪 appears to be in good working order. This is a great phone for the price. The ultra that is. 12gb ram...super fast 🏃‍♂️

    Reviewed in the United States on December 9, 2024

    Galaxy S21 Ultra 5G 128GB - Silver - Unlocked
  • L

    La mar R.

    Purchased on June 29, 2024

    Verified purchase
    4.8/5

    Love the phone, and the seller is A+++!! Thank you so much Note: phone is refurbished, and won't seem to connect to 5G. Not sure if that was the previous issue, but 4GLTE is just as good. Love this phone!

    Reviewed in the United States on December 9, 2024

    Galaxy S21 Ultra 5G 256GB - Black - Unlocked
  • K

    Katie S.

    Purchased on June 15, 2024

    Verified purchase
    4.8/5

    Buying my new phone was easily a 5/5, but honestly, trading in your phone to this company was a 1/5. I will explain why below. I was trading in my Galaxy Note 20, and yes it did not look the best, but I was HONEST. I selected the options that said it had wear and tear, and selected the option for the screen that said something about "having dead pixels" because it had a VERY TINY area with a dead pixel on it. The original offer was $141, but upon the refurbisher receiving the phone, I was told that it "didn't match the description" and "had a dot on the screen." They counter offered me a whole ONE DOLLAR. It was honestly insulting that you can tell the truth, be told you were wrong, then get that little of an offer. I'd recommend these guys for buying a phone a million times over, but save yourself some time and sell your old phone yourself.

    Reviewed in the United States on December 9, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • M

    Marcos O.

    Purchased on January 14, 2025

    Verified purchase
    4/5

    I bought the Premium price Samsung in which it wasn't supposed to come with scratches and it did. It states no scratches. I should of went with the one that said good instead. The good thing is that I bought it to get the extra year of service with Visible for $30 instead of $45.

    Reviewed in the United States on January 27, 2025

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • L

    Ladonna S.

    Purchased on January 4, 2025

    Verified purchase
    4.9/5

    Love my experience and will recommend it to others. Great zoom on camera Drawback on my Samsung s21 ultra: wacky mic is outside the keyboard and is very sensitive. I downloaded google keyboard but can't use its emojis.

    Reviewed in the United States on January 26, 2025

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • L

    Linda K.

    Purchased on December 22, 2024

    Verified purchase
    4.2/5

    The purchase process was easy, took about 3 days to get the phone and the phone was in good working condition as described. Highly recommend using Back Market for a good refurbished phone.

    Reviewed in the United States on January 6, 2025

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
  • K

    Kristin S.

    Purchased on November 21, 2024

    Verified purchase
    5/5

    The Phone: I have loved every single Samsung phone I've ever owned, and I have not purchased any other brand of cell phones close to ten years. in general, there's no competition when it comes to quality, durability, and customizability on the the market. The seller: This was, without a doubt, the best experience I've had when purchasing via a Back Market seller. Shipping was surprisingly fast, the condition of the phone exceeded my expectations, and the packaging was stellar. Moving forward, when I am on the market for a devices, I will check this seller's profile before doing a general search.

    Reviewed in the United States on December 9, 2024

    Galaxy S21 Ultra 5G 128GB - Black - Unlocked
See all 365 reviews

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Refurbished Galaxy S21 Ultra 5G – Fast connectivity device

 

The refurbished Samsung Galaxy S21 Ultra 5G from Back Market is a high-performing device that has been thoroughly tested to ensure it gets the job done right, right away. It has been refurbished to give it new and exciting features, thus performing like a brand new Galaxy S21 Ultra 5G. If you prefer a Samsung phone that guarantees fast connectivity, the refurbished Galaxy S21 Ultra 5G is your best bet. It has a powerful and intelligent battery that stores adequate power to keep it running all day long. Would you like to take some memorable photos and videos with your family and friends? The device has a high-resolution camera to help you shoot stunning photos and videos any time of the day. The refurbished Galaxy S21 Ultra 5G will help you discover more anywhere and anytime. The S21 Ultra 5G belongs to the Galaxy S21 series, which has been released 2021.

Significant features to find in Galaxy S21 Ultra 5G refurbished device

  • The first thing you’ll love about the refurbished Samsung Galaxy 21 Ultra 5G is its fast processor and robust connectivity. Its processor and 5G network connectivity allow you to perform various activities such as browsing, live streaming, video editing, and story sharing in a flash. You can also multi-task without it running slowly. It has a 5,000 mAh battery that can last for over 11 hours, ensuring you stay connected to the outside world.
  • The refurbished Galaxy S21 Ultra 5G helps you capture the best moments in your life, thanks to its highest resolution camera. It has 108MP and an upgraded sensor to take crisp, clear, and colourful photos and videos. The multi-lens camera helps you zoom in with more clarity from multiple angles. Also, its super-sleek 8k video will help you to shoot HD videos during the day and at night. You can use its camera to create share-ready GIFs in a single take. In other words, its camera makes you feel like you have a professional studio wherever you go.
  • When it comes to displaying, the refurbished Samsung Galaxy 21 Ultra 5G helps you focus on what’s shown on the screen without straining your eyes. It has a high contrast ratio and a 6.8-inch adaptive screen display that will automatically adjust from 10Hz to 120 Hz. Also, it has intuitive blue-light management that changes depending on the time of the day to take care of your eyes.
  • You can store all your photos, videos, and documents with the refurbished S21 Ultra 5G, thanks to its 128GB internal memory. The device has everything to help you explore and discover more! 

Why buy a cheap Galaxy S21 Ultra 5G from Back Market?

Buying a refurbished Samsung Galaxy 21 Ultra 5G from Back Market has various exciting perks. The device is cheap and guarantees the same high-quality features, just like a brand new S21 Ultra 5G. Back Market ensures that the device is meticulously refurbished to function as its original counterpart. As a result, you’ll purchase a high-performing device and save some money.

If you’re eco-conscious, the device conserves the environment by saving 8 Oz of e-waste. You’ll also enjoy 30 days to change your mind if it doesn’t impress you and a 1-year warranty. Are you looking for a cheaper phone than the S21 Ultra 5G but you still want a top notch phone? Then we can recommend you the Galaxy S21 Plus 5G or even the Galaxy S20 Ultra 5G, that has been released in 2020.

Does a refurbished Galaxy S21 Ultra 5G have an external memory slot?

Unfortunately, this phone doesn’t have an external memory slot for a MicroSD card. However, you can use its large internal 128GB memory to store all your media files, apps, and essential documents.

Is refurbished Samsung Galaxy 21 Ultra 5G single or dual sim?

The device is a single sim.

What other accessories are included in Galaxy S21 Ultra 5G?

All Samsung Galaxy 21 Ultra 5G come with a compatible charging cable. However, you won’t find an AC adapter and headphones since they contribute to e-waste, because most likely you already have an adapter and headphones.